Radiating piston pump



Augl 28, 15923..

B F JOHNSON RADIATING PISTON PUMP Original Filed April 13, 1921 Patented Aug. 28, 1923.

Nrrao BENJAMIN F. JOHNSON, OF BALTIMORE, MARYLAND.

RADIATING PISTON PUMP.

/App1ieation filed April 13, 1921, Serial No. 460,913. Renewed June 1, 1923.

To all whom it may concern:

Be it known that BENJAMIN F. JOHNSON,

,a citizen of the United States, residing at Baltimore, in the State of Maryland, has invented certain new and useful Improvements in Radiating Piston Pumps, of which the following is a specification.

This invention relates to air or water pumps, and more particularly to the radiating piston type of pump in which there are a plurality of oppositely disposed cylinders and pistons.

An object of the invention is to provide a plurality of adjacent radially and oppositely disposed cylinders within an integral casing or housing, and a plurality of interconnected pistons for operating in said cylinders, whereby there will be a constant pressure of air or water, and which may be increased by simply speeding up the pump.

Another object of the invention is to provide a plurality of radially disposed cylinders and pistons within an integral casing, said casing being provided with a pair of annular orifices or passages for the passage of the inlet and exhaust or discharge air or water, and valves or like means connecting said orifices with said cylinders.

Other objects will-ap'pear as the description proceeds.

In the accompanying drawings which constitute a part of my application,-

Figure 1 is a side elevation in section of my improved radiating piston pump;

Figure 2 is an end elevation of the same, showing the cover for the casing;

Figure 3 a sectional elevation of one of the cylinders, showing the relative positioning of the orifices and inlet and outlet valves;

Figure 4 is a side elevation in section, showing the positioning of the separate cylinders, and

Figure 5'is a side elevation of a yoke and oppositely'disposed piston rods, with operating cam and slide in position.

Like characters of reference are used throughout the several views todesignate corresponding parts.

The casing 1 is cylindrical in shape, and is provided with the supporting legs 2, through which extend the openings 3 for fastening the pump to its support. A pair of annular orificesor passages 3.and 4 are formed in the casing 1, and have the partition" or wall 5 separating the one from the other. The inlet pipe 6 is connected with ready assembling. The separate cylinders 9 are placed in the casing 1, and the bolts 11 screwed into place. It will be seen that the heads of the bolts 11 will engage the adjacent cylinders and thereby hold them in position. cally opposite one from the other. Connecting the intake and discharge orifices with the cylinders, are the inlet valves 12 and discharge valves 13.

The driving or operating shaft 14, extends through the center of the casing 1, and is revolubly mounted in the bushing 15. A pulley or driving wheel 16 is positioned on the outer free end of the said shaft 14, to which is connected the source of power for driving the pump.

Connected on the inner end of the shaft 14, is the eccentric 17. A plurality of yokes 18 are positioned about the eccentric 17 and are slidably mounted on the sleeves 19, through which the eccentric passes. Oppositely disposed piston rods 20 are formed integrally with the yokes l8, and are connected with the pistons 21, which operate in the cylinders 9. Suitable packing 22 is positioned in the cylinders 9, and! held in place by means of the sleeves or collars 23, held in position by means of the bolts 24.

From the foregoing description, it will be seen that there is cross motion of the pistons and rods, and no rotary motion,'due to the fact that the sleeves 19 which are mounted onthe eccentric 17, sliding back and forth along the yokes, entirely takes up the rotary or any opposite motion. The cylinders are slightly offset to permit of the assembly of the several yokes and slides on the eccentric.

It will further be apparent that the faster the pump is driven, the more air or water is discharged, also, 12:18 cylinders are so positioned that there will be a steady flow or constant pressure, inasmuch as there will always be one cylinder compressing.

The cylinders 9 are diametri-' the description.

This pump is simple in design and inexpensive to operate and manufacture, and furthermore is practically fool proof. Simplicity with strength of construction makes this pump of great value in every respect.

The operation of the pump is evident from However, it will be seen that when the pump is operated, the air or water will be drawn in the inlet orifice, and the inlet valve closed at the end of the suction stroke of the piston. The out or discharge valve is opened as soon as the piston in the cylinder begins to compress, and thus the fluid Will be discharged under pressure. As before mentioned the pressure Will be constant, due to the positioning of the cylinders and interconnected pistons.

Many minor changes in detail of construction may be resorted to without departure from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is 1. A radiating piston pump comprising a casing, said casing being provided with peripheral parallel intake and discharge passages, a plurality of yokes having oppositely extending piston rods, integrally formed pistons carried by said rods, cylinders for said pistons, and a single eccentric for operating said yokes and pistons.

2. A radiating piston pump comprising a casing, said casing being provided with peripheral parallel intake and discharge passages, a plurality of yokes having oppositely extending piston rods, integrally formed pistons carried by said rods, offset oppositely disposed cylinders for said pistons, and a single eccentric for operating said yokes and pistons.

In testimony whereof ll aflix m signature.

BENJAMIN 15. J0 NSON. 

